When you search your inbox, and you click on one of the results, when you return to the results they are gone and your search has been cleared. You literally have to do an entirely new search for every result you open, so if you are looking for a specific email and are unable to tell which one it is due to similar subject headings you are forced not only to do an entirely new search each time you open a result, but to remember exactly where you were and scroll all the way down to that previous result. By far in the top 5 stupidest flaws in iOS history. How this hasn’t been corrected yet I have no idea.